Airworthiness directives › 98-16-24
AD 98-16-24 Airworthiness Directives; British Aerospace Model BAe 146 and Model Avro 146-RJ Series Airplanes
Models named: BAe 146 series, Avro 146-RJ series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Model BAe 146 series airplanes; and Model Avro 146-RJ series airplanes, as listed in British Aerospace Service Bulletin SB.57-50, Revision 2, dated March 20, 1997; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Required as indicated, unless accomplished previously. To prevent corrosion from developing on the underside of the top skin of the center wing, which could result in reduced structural integrity of the airplane, accomplish the following: (a) Within 2 years after the effective date of this AD, perform a one-time intrascopic inspection for ``drill marks'' and corrosion on the underside of the wing top skin, in accordance with British Aerospace Service Bulletin SB.57-50, Revision 2, dated March 20, 1997. (1) If no ``drill mark'' or corrosion is detected, no further action is required by this AD. (2) If any ``drill mark'' is detected, prior to further flight, apply protective treatment coating, in accordance with the service bulletin. (3) If any corrosion is detected, prior to further flight, repair in accordance with a method approved by the Manager, International Branch, ANM-116, FAA, Transport Directorate; and apply protective treatment coating in accordance with the service bulletin. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, International Branch, ANM-116. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. (c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The inspection and application of protective treatment coating shall be done in accordance with British Aerospace Service Bulletin SB. 57-50, Revision 2, dated March 20, 1997, which contains the following list of effective pages: [[Page 42222]] ------------------------------------------------------------------------ Page No. Revision level shown on page Date shown on page ------------------------------------------------------------------------ 1, 2.............. 2.............................. March 20, 1997. 3-5............... 1.............................. December 11, 1996. ------------------------------------------------------------------------ This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from AI(R) American Support, Inc., 13850 Mclearen Road, Herndon, Virginia 20171. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. Note 3: The subject of this AD is addressed in British airworthiness directive 004-12-96. (e) This amendment becomes effective on September 11, 1998. Issued in Renton, Washington, on July 31, 1998. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-21105 Filed 8-6-98; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1